A.當(dāng)事人B.工長C.質(zhì)量員D.項(xiàng)目經(jīng)理
A.輕微質(zhì)量事故 B.嚴(yán)重質(zhì)量事故 C.施工質(zhì)量事故 D.重大質(zhì)量事故
A.1m B.3m C.5m D.7m